class_docstr: Test case of end to end
code: def test_load_default(self):
      name = "load_test_collection_1"
      name2 = "load_test_collection_2"
      # create
      # collection_w = self.init_collection_wrap(name=name)
      # collection_w2 = self.init_collection_wrap(name=name2)
      # assert collection_w.name == name
  
      for i in range(50):
          name = f"load_collection2_{i}"
          self.init_collection_wrap(name=name)
      log.debug(f"total collections: {len(utility.list_collections())}")
  
file_path: milvus/tests/python_client/load/test_workload.py
imports: import datetime
  import pytest
  from base.client_base import TestcaseBase
  from common import common_func
  from common import common_type
  from common.common_type import CaseLabel
  from utils.util_log import test_log
  from pymilvus import utility
label_desc: Use image node_id 1 for calling the TestLoad obj's underlying member method code with example usage: obj.test_load_default() without return types